Improve Binder and launch jupyverse directly

[davidbrochart]

Closes #73

[davidbrochart]

@jtpio @fcollonval you can try it here: https://mybinder.org/v2/gh/davidbrochart/jupyverse/improve_binder
IIUC it doesn't launch jupyverse directly, you need to click on jupyverse in the launcher?

[jtpio]

Probably setting ?urlpath=jupyverse in the Binder URL will handle the redirect?

[davidbrochart]

Indeed, thanks.
Any way to not have the ?token=l8XZNQDWR-KQiuMuwQtemQ query parameter?

[fcollonval]

Probably setting ?urlpath=jupyverse in the Binder URL will handle the redirect?

I thought that too but it does not work...
May be related I see that in the server log:

if have_lab:
    # if recent-enough lab is available, make it the default UI
    sys.argv.insert(1, "--NotebookApp.default_url=/lab/")

[davidbrochart]

I thought that too but it does not work...

This works: https://mybinder.org/v2/gh/davidbrochart/jupyverse/improve_binder?urlpath=jupyverse
The problem is that jupyverse expects a UUID for the token, but here we launch it with noauth anyway so there should not be any token query parameter.

[fcollonval]

This works: https://mybinder.org/v2/gh/davidbrochart/jupyverse/improve_binder?urlpath=jupyverse

I get the following answer: {"detail":[{"loc":["query","token"],"msg":"value is not a valid uuid","type":"type_error.uuid"}]}

Not the application

[davidbrochart]

Yes, jupyverse expects a UUID (when launched with --authenticator.mode=token), that's why we shouldn't pass a token query parameter (the one from Jupyter is not a UUID).

[davidbrochart]

I guess we can allow the token to be any string.
This works now, the only thing is that it only launches the JupyterLab frontend (compared to before where we had the choice to choose RetroLab). Maybe we could add another server in jupyter_notebook_config.py for RetroLab?

[davidbrochart]

Someone wants to squash and merge?

[jtpio]

Thanks!

[jtpio]

Looks good on Binder: